Question 324034
{{{((1/6)x^3-(1/4)x-(1/9))-(-(1/6)x^3+(1/4)x-(1/9)) =((1/6)x^3-(1/4)x-(1/9))+((1/6)x^3-(1/4)x+(1/9))}}}

{{{((1/6)x^3-(1/4)x-(1/9))-(-(1/6)x^3+(1/4)x-(1/9)) =(1/3)x^3-(1/2)x}}}